YJIT Benchmarks

Details for Benchmarks at 2022-03-25 19:12:40

Overall YJIT is 32.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.7% faster than CRuby!
The basic "faster" measurement is the geomean of all "headlining" x86 benchmarks on this page.

Headlining Benchmarks

These are "headlining" because the "overall" speedup above is based on these benchmarks specifically.

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

Other Benchmarks

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

MicroBenchmarks

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

Want Raw Graphs and CSV?

Benchmarks Speed Details

Benchmark Memory Usage Details

Number of Iterations and Warmups Tested

bench No JIT warmups No JIT iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 181 75 181 20 181
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 30 75 30 20 30
discourse 5 39 75 39 20 39
erubi 5 47 75 47 20 47
erubi_rails 5 978 75 978 20 978
fannkuchredux 5 15 75 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 22 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 446 75 446 20 446
fib 5 320 75 320 20 320
getivar 5 778 75 778 20 778
keyword_args 5 379 75 379 20 379
respond_to 5 101 75 101 20 101
setivar 5 1888 75 1888 20 1888

Different Ruby configurations want different amounts of warmup. With no JIT, CRuby needs hardly any. YJIT and MJIT 3.0 both warm up quite quickly, while MJIT in 3.1 often slows down for a time as it compiles, after an unpredictable delay.

Benchmark YJIT Stats

Hover your cursor over the benchmark names for descriptions of each benchmark.

bench Exit Report Inline Outlined Comp iSeqs Comp Blocks Inval Inval Ratio Bind Alloc Bind Set Const Bumps
activerecord (click) 988305 758501 185 1199 0 0% 0 0 0
hexapdf (click) 1114065 912640 599 8151 613 7% 0 0 320
liquid-render (click) 492305 390315 143 1531 96 6% 0 0 1
mail (click) 846545 636558 324 5011 125 2% 0 0 39
psych-load (click) 331921 262361 59 434 1 0% 0 0 0
railsbench (click) 2536209 1932999 1297 9345 268 2% 0 0 26
binarytrees (click) 153169 117411 11 59 0 0% 0 0 0
chunky_png (click) 366993 286182 85 864 0 0% 0 0 0
discourse (click) 24202385 11997348 3133 309232 285668 92% 2 0 133
erubi (click) 310289 244217 10 79 0 0% 0 0 0
erubi_rails (click) 1907473 1436420 262 1879 18 0% 0 0 3
fannkuchredux (click) 166545 127941 8 189 0 0% 0 0 0
lee (click) 373585 294503 45 587 69 11% 0 0 12
nbody (click) 162577 124773 10 159 0 0% 0 0 0
optcarrot (click) 489297 430074 198 3576 20 0% 0 0 0
rubykon (click) 296657 239684 140 1560 1 0% 0 0 0
30k_ifelse (click) 5542353 4337896 9263 57805 0 0% 0 0 0
30k_methods (click) 2157521 1646358 5782 19362 0 0% 0 0 0
cfunc_itself (click) 151249 115912 8 50 0 0% 0 0 0
fib (click) 142033 108094 8 39 0 0% 0 0 0
getivar (click) 151697 118104 8 66 0 0% 0 0 0
keyword_args (click) 152145 116513 9 52 0 0% 0 0 0
respond_to (click) 153425 117326 8 65 0 0% 0 0 0
setivar (click) 151953 116683 8 39 0 0% 0 0 0

YJIT stats correspond to the YJIT stats exit report.

Note: currently, all stats are collected on x86_64, not ARM.

Raw JSON data files

All graphs and table data in this page comes from processing these data files, which come from benchmark runs.